By Will Butcher

Joey Barton’s week is set to go from bad to worse as the Scottish FA have launched an investigation into his gambling activity.

The SFA have a strict no-betting policy on any games in Scotland, but the 34-year-old is accused of betting that Barcelona would inflict a heavy defeat on Rangers Old Firm rivals Celtic.

Sky Sports claim that the SFA are awaiting a full report from the Gambling Commission before pressing ahead with charges against the former Manchester City man.

It’s been a week to forget for Barton, who on Monday was told that he would be banned from Ibrox and Rangers’ training ground Auchenhowie for three weeks after a training ground altercation with fellow midfielder Andy Halliday, in the wake of the Gers’ 5-1 loss to Celtic.

Celtic’s chief executive Peter Lawwell has also revealed on Tuesday morning that a representative of Barton had tried to manufacture a last-minute move to Celtic, instead of Rangers.

It leaves the ex-England international’s future at Mark Warburton’s side very much in doubt, with clubs likely to be willing to take a punt on the controversial midfield man.

Barton has made eight appearances for the Scottish giants this term, helping his new side to five league and cup wins as well as third place in the Scottish Premiership.

In other Rangers news, this is the expected side to face Alloa on Tuesday night.